Die for blanking out and piercing buttons.



I. S. BIRNZWEIG.

DIE FOR BLANKING OUT AND PIERCING BUTTONS.

APPLICATION FILED IuNEzs. 1916.

Patented oct. 9,1917.

2 SHEETS-SHEET l,

T/fIIIII- w I. S. BIRNZWEG.

DIE FOR BLANKING OUT AND PIERCING BUTTONS. APPLICATION FILED JUNE 26, 11916.

2 SHEETS-.SHEET 2.

5513 Z915 ofowzw www puritan sTA'rEs PATENT oFF-ion.

JACOB s. BIRNZWEIG, or NEW YORK, N. Y.

'DIE FOB BLANKING OUT .AND PILERCING BUTTONS.

"specification of Letters Patent.

Application filed J une 26,1916. Serial No. 105,842. Y

y To all 'whom t may concern:

- dies for blanking out buttons, that is to say, for forming blanks which are nally placed in closing dies. My improved dies are ar-l v ranged to not only form the blanks for but? tons, but also to cut or trim the blanks and to pierce them. In other words, my improved dies stamp, trim and pierce buttonlanks in one operation, the said blanks being finally placed in closing dies.

I will now proceed to describe my invention in detail, the essential features of which will be summarized in the appended claims, reference being had` to the accompanying drawing, forming part hereof, wherein- Figure 1 is a vertical sectionalview of m improved die; f

Fig. 2 is a side elevation of the parts which go to make up the female die;

Fig. 3 is a fragmentary sectional view ofy the upper portion of the female die;

Fig. 4 is a sectional plan view, the section being taken on a line Fi'g. 2;' and Figs. 5 and 6 are sectional detail viewsl illustrating the operation of the combined stripLl per and trimmer.

As herein illustrated, my improvement comprises a female dieportion 1, and a male die portion 2, the female die portion being arranged for attachment to the slidable head or plunger indicated by 3 of any suitable.

press, either hand or power. In this instance a set-screw 4 is employed to secure the two together. The female die portion consists of a carrier or support 5 having a cylindrical bore 6 to slidably` retain `a plunger 7 constituting the female die proper. The lower end 8 of said plun er is formed to blank out any desirable con guation` for a button.

The buttons for which my improved dies are mainly designed are those which are made of celluloid or other suitable material provided with ybacks of metal, celluloid or any other desirable material, the said buttons being blanked out in the form of cups indicated by 9 in Figs. 5 and 6. To assist in forming the cups 9, I provide the female die portion with a head 10 through which the female die passes.

The male die. portion comprises a hollow post 11 carrying a male. die 12 shaped to conform to the female die 7 It will be obvious that the die 12 is removably secured to the post 11 and also that the female die 7 -is removable from support 5. These dies are removable in order that dies for buttons of various designsl can be substituted. The post 11 is carried by a bracket 13 arranged for securement to the bed 14 of the press by bolts 15 or otherwise. The post 11 slidlably supports a combined stripper andtrim ming element 16 which is carried by a crosshead 17 The slidable plunger or female die 7 and cross-headl? are connected by rods 18, 18 threaded at their upper ends 19, 19 to receive adjusting nuts 20, 20 and' 21, 21. The threadedends of the rods 18, 18 pass loosely through studs 22, 22 lwhich pass through slots v28, 23 in the support 5 and engage the slidable female die 7.

To coperate with the head 10, I provide vthe male die portion with a slidable abutratentea oct. a, reir.

ment 24 which carries' a removable ferrule or cap 25 having a circular opening 26, surrounding the male die 12. The opening 26 is about the sizegof the flat disk or blank 27 out of which the cups 9 are finally formed. In combination with the abutment 24, the opening 26 in the cap. 25-forms a pocket to retain the disk 27. The opening 26 will vary in Asize to suit various size blanks. To form buttons of different thiknesses the blanks therefor, which are fiat disks, will be of various diameters, the deeper the blank o1 cup desired, the greater the diameter of the flat disk out of which the cup is formed; hence the diameter of the opening 26 must be. proportionate to the size of disk it re ceives. The cap 25 is removable, so that lfor a larger or smaller disk cap 25 having suitable opening 26 may be substituted.

The abutment .24 is yieldably supported by a spring 28 which bears against both the abutment and cross-head 17. Hence, both the abutment and cross-head, and consequentl the stripper and trimmer 16, are yielda ly resisted andare arran ed to move in opposite directions against t e pressure of said spring. rlhe abutment 24 is provided with a slot 29 through which a pin 30 passes into the post 11 through a slot 31 1n the stripper and trimmer 16; hence, the upward movement of the abutment is limited. rllhe pin 30 is set to cause the upper surface 32 of the abutment 24 to lie in alinement with the face of the male die 12 as shown in Fig. 1.

A further feature of my invention cons sists of a set of punches 33 carried by a post 34 which in turn is carried by the female die support 5. 'llhe post 34 is fixed, the punching or piercing being accomplished by the punches 33, which pass through the female die during the blanking out operation. 'llhe 'male die 12 is provided with openings 33a alining with the punches 33.

During the blanking operation, the. die support 5 and die 7 move in unison, motion being transmitted to the die from the support 5 by a movable plate 35 carried by a lever 36 pivoted, at 37, to a block 38 carried by the die support 5 (see Figs. 2 and 4) rlhe movable plate occupies a position in a space 39 between the die 7 and its support 5 (see Fig. 3) and causes the said die and its support to move in unison. When the plate 35 is moved out of the space 39 the female die will slide into the support 5 to the extent of the width of the space 39; as will hereinafter be described. lWhile the cup 9 is being blanked the unches remain located within the female die, as shown in Fig. 1.

To form a button blank or cup, a disk 27 (of Celluloid, for instance, slightly preheated) Will be placed in the pocket 40 therefor and the plunger 3 of the press moved downwardly until the female die forces the disk into contact with the male lsame (see Fi 6).

die. rlhereafter the continued downward movement of the plunger 3 will move the support 5 downwardly. to a position, as shown in Fig. 5, to surround the male die, thereby forming the cup shaped blank 9. 'llo allow the support 5 to'surround the' male die, the abutment 24 will move downwardly against the tension of the spring 28. The downward movement of the abutment 24 allows the edge 41 of the stripper and trimmer 16 to come into contact with the edge 42 of the blank, thereby trimming the Then the plate 35 is moved out o the s ace 39, as shown in Fig. 4 the female dle willA cease to move downwardly with its support, but the post 5 and its punches 33 will move with said support, causing the said punches to protrude through the female die and blank or cup 9, thereby producing thread-openings in the blank.`

When the plunger 3 of the press rises and comes to the position shownin Fig. 1

or thereabout, the studs 22 will contact with 65 the adjusting nut 20. A further upward movement on the part of the head will raise the cross-head 17 and stripper and trimmer 16, thereby forcing the cup 9 0H the male die 12; hence the stripper and trimmer will force the blank 0H the male die. Upon the upward stroke of the plunger 3, and before the studs 22 strike the nuts 20, the abutment 24 will be forced to its normal position by the spring 28. The cross-head 17 will of course not rise until the head 3 is raised enough to cause the studs 22 to strike the bottoms 43 of the slots 23. Before the head 3 again moves downwardly the plate 35 will be moved into the space 39 between the female die and the support 5 therefor. rlhe upward movement of the cross-head can be timed and altered by' any suitable manner.

y The position of the female die 7 in the support 5, that is, the position when not in use, is not material. When the plunger 3 moves down, the female die will not act until it contacts with the plate 35. Therefore it makes no difference whether the female die is positioned,`as shown in Fig. 1, or not, when it starts its downward stroke. When the plunger moves up, the die 7 will be moved away from the end wall of the support 5 as soon as the studs 22 and nuts 20 come into contact; therefore, the plate 35 can be moved into place as shown in Fig. 3. The female die 7 has a slidable engagement with the support 5, but is not loose enough to fall by gravity. When the blank is forced over the male die, it will be drawn out as it will be slightly heated; hence, the lower edge of the blank, indicated by 42 in Fig. 6, will protrude into the pocket 40. The drawingout of the blank will take lace while the upper die is descending and before the male and female dies come together close enough to form the top of the cup-shaped blank and before the edge 41 of the. stripper and trimmer has been brought into contact with the blank, as shown in Fig. 5. When the upper die has finished its stroke the edge 41 will have been brought into contact with the edge 42 of the blank and will sever sameor trim the I blank, as shown in Fig. 6. `When the upper die moves up, the trimmer and stripper 16 slidably retained thereby, a male portion consisting of a male die, a movable abut-y ment surrounding said die, and a trimmer located in the space between said abutment and male die adapted to coperate with said support to trim the edge of the blank which is therein operated upon. pr

2. A stamping device consisting of a movable female die, a'coperating male die, a

- female die, whereby the punches will be operated, and a male die alining with the female die.

4. A stamping device, comprising a female portion consisting of a support, a, female die movably retained thereby, punches arranged to pass through said female die, shiftable means to cause said support and die to move in 'unison and arranged to permit said support to move independently of the female die whereby the punches will be operated, a male portion consisting of a, male die and a movable abutmentsurrounding same, combined with adevice adapted to strip the completed article and also to coperate with said support to trim the edges thereof.

, 5. A stampin device, consisting of a support, a female die movably retained thereb fixed punches arranged to pass through sald female die, means to connect said support and female die to cause same to move in unison, at which time said punches will be retained within said female die, said connecting means being arranged to permit said support to move downwardly to cause said punches to pass through said female die, and, a male die provided with openings alining with the female die.

6. A stamping die consisting of a support,

a female die movably retained thereby, ixed,

male die provided wlth openings alining with the female die, and a movable abutment surrounding said male die. l

7. A stamping die consisting of a support, a female die movably retained thereby, fixed punches arranged to pass through said female die, means to connect said support and female die to cause same to move in unison, at which vtime said punches will be retained within said female die, said connecting means being arranged to permit said support to move downwardly to cause said punches to pass through said female die, a male die provided with openings alining with the female die, a movable abutment surrounding said male die, combined with a device adapted to strip the completed article and also to coperate with said support to trim the edgesthereof.

8. A button stamping device comprising a movable female die, a fixed male-die portion consisting of a post, a male die carried thereby, a stripper surrounding said post and slidably mounted thereupon, an abutment surrounding said stripper and slidably mounted thereupon, a cross-head connected to said stripper, a spring located between said cross-head and said abutment, and

means connecting said cross-head and said female die.

9. A stamping device consisting of a support, a female die movably retained thereby, lixed punches arranged to pass through said female die, means to connect said support and female die to cause same to move in unison, at which time said punches will be retained within said wfemale die, 'said connecting means being arranged to permit said supsoy port to move downwardly to cause said y punches to pass through said female die, a fixed male die portion consisting of a post, a male die carried thereby and provided with openings alining with said punches, a stripper surrounding said post and slidably mounted thereupon, an abutment surroun ing said stripper and slidably mounted thereupon, a cross-head connected to' said.

stripper, a spring located between said cross-head and said abutment, and means onnecting said cross-head and said female 10. A stamping device consisting of a support arranged for attachment to the plunger of a press, a die member slidably retained thereby, punches arranged to pass therethrough, shiftable means to cause said support and die to move in unison, and arranged to also permit said support to move independently of the female die, whereby the punches will be operated mined point in the operation thereof, and a coperating die-member alining with the die in said support. v

11. A stamping device consisting of a 4female die,a male die aliningitherewith, a

movable stripper surrounding said male die,

and means to move said stripper, upwardly, after said dies have operated, to strip the formed blank from said mal die.

at a predeter- 12. A stamping device, consisting of a female die, a-male die alining therewith, a movable stripper adjacent said male die, and means connecting said stripper and the female die to move said stripper upwardly to strpthe formed blank olif the male die after the dies have operated.

JACOB S. BlRNZWEllG.

Witnesses:

MAURICE Woon, EDWARD A. JARvxs. 

